If you are assembling an early flat tank Norton from boxes of parts then this parts book could just be the magic wand that you are looking for. It covers 1925 and all previous models including the Big Four, the 16H 3 1/2hp Sports, the Model 18 3 1/2hp OHV, the 3 1/2hp Colonial, the 3 1/2hp Direct Belt Drive and the 3 1/2hp Touring Model. The 3 1/2hp models are of 490cc. It includes some very detailed plate photographs of the parts.
Thanks to Andrew for sending us the copy. Our cupboard is getting a bit low at the moment so we welcome any contributions.
Click on the cover below to see the complete 50 page catalogue.
It is a 9.4M PDF.

